Re: whats wrong in this program.
| From: | Jordan Miller | Date: | Wed, 14 Sep 2005 02:03:45 +0000 |
| Subject: | Re: whats wrong in this program. | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-222334@lists.php.net to get a copy of this message | ||
I think I finally understand what you are trying to do. I don't see any reason why you need to use the token functions, and I would recommend using array functions instead (also, it is exceedingly easy to sort the elements of an array... see the end).
I believe this will do what you are trying to do:
//Tokenizer for Babu
$str = '10,12,14-18';
$commas = explode(',', $str); // $commas will be an array of three items in this case
// Final Values will go into the $final array
$final = array();
foreach ($commas as $value) {
// If one of the $commas elements contains a dash, we need to get the range between them!
if (strstr($value, '-')) {
// Explode based on the dash. This code assumes there will only be a single dash
$rangeValues = explode('-', $value);
foreach (range($rangeValues[0], $rangeValues[1]) as $number) {
$final[] = $number;
}
} else {
// If $value does not contain a dash, add it directly to the $final array
$final[] = $value;
}
}
echo "All your values in the range $str are ".implode(' ', $final);
// Prints "All your values in the range 10,12,14-18 are 10 12 14 15 16 17 18"
In your last email, you had some of the values given out of order:
1. 20,21-24
2. 21-24,20
3. 10,20,21-24,25,26,30
To make sure the $final values are always ascending, just do this at the end:
sort($final);
Done!!
Jordan
On Sep 13, 2005, at 7:16 PM, babu wrote:
$str=10,12,14-18; $tok = strtok($str, ','); while ($tok !== false) { $toks[] = $tok; $tok = strtok(','); } foreach ($toks as $token){ if (strpos($token,'-')){ stringtokenize($token); }else{ $finaltokens[]= $token; } } function stringtokenize($nstr){ $ntok1= strtok($nstr,'-'); $ntok2=strtok('-'); for($i=$ntok1;$i<=$ntok2;$i++){ $finaltokens[]= $i; } } foreach ($finaltokens as $ftoken){ echo $ftoken; echo "<br />"; } the ouput prints only 10,12 but not 14,15,16,17,18. where is the problem. --------------------------------- To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre.